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Finding the Fourth Proportional to 201,308.68, 301,790.22 and 112,489.48

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Solution

The fourth proportional to 201,308.68, 301,790.22 and 112,489.48 is: 168,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,308.68 : 301,790.22 = 112,489.48 : x
  2. Step 2: Convert to fraction form
    201,308.68/301,790.22 = 112,489.48/x
  3. Step 3: Cross multiply
    201,308.68x = 301,790.22 × 112,489.48
  4. Step 4: Simplify right side
    201,308.68x = 33,948,224,916.89
  5. Step 5: Solve for x
    x = 33,948,224,916.89/201,308.68
  6. Step 6: Final answer
    x = 168,637.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.